Annotation of images and geospatial data for AI

Image and Geospatial

Data Annotation for AI

High-precision datasets for territorial analysis,
change detection, and environmental planning.

What We Do

A team of data and computer vision experts specializing in image and geospatial data annotation.

We support R&D, geomatics, and environmental teams in building robust datasets: surface segmentation, land cover classification, multitemporal analysis, multisource data fusion, and intelligent mapping.

Our annotations ensure spatial consistency, traceability, and geographic interoperability (GIS/OGC).

Rigorous and Controlled Process

Definition of a geospatial annotation guideline, validation of pilot samples, multi-level QA iterations, and accuracy audits.

Metrics: IoU, F1, mAP, temporal drift, class coverage, and inter-annotator consistency metrics.

Security & Compliance

Secure handling of sensitive data: encryption, data segregation, access control, connection traceability, and compliance with ISO 27001 and GDPR standards.

Geospatial data anonymized and hosted on a sovereign cloud when required.

Multi-Sensor & Multi-Scale Annotation

 Optical, multispectral, infrared, SAR (radar), LiDAR, and aerial/drone imagery.

2D/3D/4D analysis: classification, detection, segmentation, and temporal annotation of surface changes.

.

EXpertise

Annotation helps AI map, monitor, forecast, and optimize cities, networks, and territories.

 

At Infoscribe, we combine scientific rigor, geospatial accuracy, and mastery of data standards (GeoJSON, GeoTIFF, Shapefiles, STAC).

Our datasets enable the training of AI models capable of understanding, tracking, and predicting environmental transformations.

geospatial image and Video Annotation for AI

Territory Mapping and Land Use

Semantic segmentation of surfaces (urban, agricultural, forest, aquatic). Multi-class annotation from high-resolution satellite images.

Change Detection

Temporal analysis of satellite or drone images to detect constructions, deforestation, floods, or urban expansion.

Environmental and Climate Monitoring

Multispectral annotation to identify flood zones, wildfires, water stress, or pollution. Optical/SAR data fusion for monitoring cloudy areas.

Infrastructure and Network Mapping

Detection of roads, railways, power lines, pipelines, and buildings using LiDAR and SAR data.

Recognition and Observation

Detection, classification, and tracking of objects from aerial, terrestrial, or satellite sensors: vehicles, personnel, infrastructure, equipment, and topographic changes.

Sensitive Area Surveillance

Automatic video analysis for detecting intrusions, abnormal behaviors, gatherings, fire outbreaks, or suspicious movements in critical sites.

Geospatial Intelligence (GEOINT)

Annotation of satellite and drone images for mapping, change detection, and segmentation of complex environments: urban areas, forests, deserts, port zones.

Military and Logistics Object Detection

Identification and classification of equipment (armored vehicles, aircraft, ships, logistical infrastructure) with geometric and semantic precision.

Agricultural Analysis and Crop Indexing (AgriTech)

Annotation of plots, crops, and growth stages for monitoring yields, irrigation, and soil health

3D Terrain Modeling (DEM/DSM)

Annotation of LiDAR point clouds for topographic classification, elevation estimation, and 3D reconstruction of environments.

Maritime and Coastal Monitoring

Detection of ships, marine pollution, coastal erosion, and bathymetric changes.

Urban Planning and Climate Resilience

GIS annotation to identify built-up density, heat islands, green spaces, and urban vulnerabilities.

Critical Infrastructure Detection

Automatic recognition of strategic buildings, dams, ports, or industrial zones.

Transport Corridor Analysis

Segmentation and classification of road, rail, and logistics networks, including surrounding areas and land parcels.

Multi-Sensor and Multi-Source Fusion

Coherent integration of satellite, drone, LiDAR, GIS data, and field observations.

Text Data Annotation for Geospatial AI

Geographic Entity Extraction

Places, regions, coordinates, toponyms.

Environmental Report Indexing

Automatic classification (water, soil, biodiversity, climate).

Satellite Metadata Analysis (XML, STAC)

Structuring, interpreting, and standardizing technical metadata of observational data.

Metadata – Context and Enrichment

Completing metadata with additional contextual information.

Climatological and Territorial Monitoring

Annotation of publications and scientific articles

Automated Mission Report Summarization

NLP for consolidating field notes.

Semantic Annotation of Textual GIS Databases

Identification of attributes, codes, and correspondences.

Detection of Geopolitical or Environmental Events

Extraction of alerts, disasters, anomalies.

Other Industry Sectors

FAQ

Frequently Asked Questions

Yes, Infoscribe can manage several essential geospatial preprocessing tasks, including orthorectification, georeferencing, alignment, and reprojection of images or maps, depending on project requirements and client-provided formats. The goal is to deliver fully usable data for GIS environments, mapping applications, or geospatial AI pipelines.

Orthorectification: Infoscribe can correct distortions caused by camera angles, terrain relief, or sensors to produce geometrically accurate images. This enables the creation of orthophotos or orthomosaics suitable for precise ground measurements.

Georeferencing: The team can integrate or adjust the spatial coordinates of an image using control points, sensor metadata, or client-provided reference systems. This ensures that the data aligns correctly within a standard coordinate system.

Alignment: Infoscribe can align multiple images or datasets (satellite, drone, LiDAR, maps) so that they overlay perfectly, which is essential for temporal monitoring, change detection, or multimodal data fusion.

Reprojection: Data can be reprojected into the desired coordinate system (WGS84, Lambert, UTM, etc.) to ensure compatibility with GIS tools, geospatial models, or deep learning platforms.

These processes can be performed prior to annotation work or delivered as standalone services. Infoscribe adapts the complexity of the processing according to technical requirements, expected precision, and the nature of the geospatial project.

Infoscribe supports a wide range of geospatial formats to ensure maximum compatibility with GIS tools, mapping platforms, geospatial analysis pipelines, and deep learning systems applied to spatial data. This versatility allows seamless integration of data from satellites, drones, LiDAR sensors, or traditional cartographic sources.

Supported Raster Formats (Satellite or Drone Imagery)

Infoscribe accepts and delivers the following formats:

  • GeoTIFF / georeferenced TIF
  • Standard TIFF
  • JPEG2000
  • PNG / JPEG (for simplified or derived exports)

These formats retain the spatial metadata required for GIS applications.

Supported Vector Formats

For annotation or the creation of feature layers:

  • Shapefile (.shp)
  • GeoJSON
  • KML / KMZ
  • GPKG (GeoPackage)

These formats allow delivery of annotations as polygons, lines, or points.

Point Clouds / 3D Data

Infoscribe accepts and delivers:

  • LAS / LAZ
  • PLY
  • XYZ

These formats are used for LiDAR projects, 3D modeling, or volumetric analysis.

Supported Coordinate Systems

Infoscribe can work with:

  • WGS84 (EPSG:4326) — the most common for GPS and satellite data
  • UTM (all zones) — suitable for precise ground measurements
  • Lambert 93 (EPSG:2154) — used in France
  • Client-provided local systems
  • Reprojection to any other requested system
Deliverables Compatible with GIS and AI

Annotated or processed data can be delivered ready to use in:

  • QGIS, ArcGIS, PostGIS
  • Geospatial AI platforms (DeepGIS, TorchGeo, RasterVision…)
  • Client internal workflows

In summary, Infoscribe supports nearly all standard geospatial formats as well as the main coordinate systems used in mapping, LiDAR, remote sensing, and GIS projects.

Yes, Infoscribe can fully ensure the compatibility of essential metadata, such as projection information, capture dates, sensor parameters, or descriptive elements necessary for advanced geospatial processing.

The company places particular emphasis on the quality and consistency of metadata, as these directly affect the accuracy of GIS analyses and the performance of geospatial deep learning models. When handling data, Infoscribe systematically verifies the presence, validity, and consistency of metadata, including the coordinate system used, optical or LiDAR sensor characteristics, spatial resolutions, and temporal attributes essential for change detection or multisource analysis.

If needed, our teams can enrich, correct, or restructure metadata to meet the standards required by tools such as QGIS, ArcGIS, or PostGIS, as well as formats needed for training specialized AI models (cloud masking, land cover classification, building segmentation, etc.).

Infoscribe can also perform data reprojection, harmonize datasets from different sensors, or reconstruct a coherent metadata structure to facilitate automatic ingestion into client pipelines. This technical expertise ensures that delivered data is not only fully usable but also optimized for operational, cartographic, or AI purposes.

Through this rigorous approach, Infoscribe guarantees seamless continuity between the geospatial source and the final analytical environment, whether it is a professional GIS or a geospatial deep learning model.

Infoscribe manages the fusion of data from multiple sources by first harmonizing their metadata, formats, and coordinate systems to ensure full compatibility. Satellite imagery, drone data, LiDAR point clouds, or GIS layers are spatially and temporally aligned to ensure perfect consistency across sources. The company then applies preprocessing steps such as reprojection, coregistration, radiometric correction, or orthorectification so that each dataset can be combined without distortion or loss of accuracy.

Once this common foundation is established, Infoscribe uses specialized workflows to overlay, cross-reference, and structure information from different sensors. This may include the extraction of geographic features, object segmentation, land cover classification, or the integration of 3D data with 2D imagery. The fused data is then validated through quality controls to ensure that source correspondences are correct, any misalignments are corrected, and the results meet client requirements.

Finally, Infoscribe delivers a coherent dataset ready for use in GIS or integration into a geospatial AI pipeline. This methodology ensures that multi-source data fusion produces reliable, consistent, and actionable information suitable for advanced analyses, predictive modeling, or operational applications.